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| author | Dan Williams <dan.j.williams@intel.com> | 2015-06-30 20:10:09 +0200 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2015-06-30 20:10:09 +0200 |
| commit | af834d457d9ed69e14836b63d0da198fdd2ec706 (patch) | |
| tree | 204f9f361185a277268d322e95e70ee6c33bd144 /drivers/nvdimm/bus.c | |
| parent | sparse: fix misplaced __pmem definition (diff) | |
| download | linux-af834d457d9ed69e14836b63d0da198fdd2ec706.tar.xz linux-af834d457d9ed69e14836b63d0da198fdd2ec706.zip | |
libnvdimm: smatch cleanups in __nd_ioctl
Drop use of access_ok() since we are already using copy_{to|from}_user()
which do their own access_ok().
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/bus.c')
| -rw-r--r-- | drivers/nvdimm/bus.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c index 8eb22c0ca7ce..73442bd824a7 100644 --- a/drivers/nvdimm/bus.c +++ b/drivers/nvdimm/bus.c @@ -535,8 +535,6 @@ static int __nd_ioctl(struct nvdimm_bus *nvdimm_bus, struct nvdimm *nvdimm, __func__, dimm_name, cmd_name, i); return -ENXIO; } - if (!access_ok(VERIFY_READ, p + in_len, in_size)) - return -EFAULT; if (in_len < sizeof(in_env)) copy = min_t(u32, sizeof(in_env) - in_len, in_size); else @@ -557,8 +555,6 @@ static int __nd_ioctl(struct nvdimm_bus *nvdimm_bus, struct nvdimm *nvdimm, __func__, dimm_name, cmd_name, i); return -EFAULT; } - if (!access_ok(VERIFY_WRITE, p + in_len + out_len, out_size)) - return -EFAULT; if (out_len < sizeof(out_env)) copy = min_t(u32, sizeof(out_env) - out_len, out_size); else @@ -570,9 +566,6 @@ static int __nd_ioctl(struct nvdimm_bus *nvdimm_bus, struct nvdimm *nvdimm, } buf_len = out_len + in_len; - if (!access_ok(VERIFY_WRITE, p, sizeof(buf_len))) - return -EFAULT; - if (buf_len > ND_IOCTL_MAX_BUFLEN) { dev_dbg(dev, "%s:%s cmd: %s buf_len: %zu > %d\n", __func__, dimm_name, cmd_name, buf_len, |